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对N×特青示范田中试区与肥料试验田各处理小区稻株分析结果表明:抽穗后,亚种间杂交稻N×特青比常规稻特青干物质生产能力强,灌浆速度快;地上部各器官占植株干重比例,前者叶片比重大于茎,后者茎比重大于叶。亚种间杂交稻对肥料反应敏感,抽穗后,干物质累积,植株高度,每穗总粒数和粒重均随施肥量增加而增加,在高肥区有利于进一步提高产量,但增施氮肥后,灌浆速度明显滞后。
The results of the analysis of rice plants in each treatment plot of N × Teqing demonstration plot and fertilizer experiment field showed that N × Teqing hybrid rice had stronger production ability and faster grain filling rate than that of conventional rice Teqing, The organs accounted for the proportion of plant dry weight, the former leaf proportion greater than the stem, the latter than the leaf specific gravity. The intersubspecific hybrid rice was sensitive to fertilizer. After heading, the dry matter accumulation, plant height, total grain number per panicle and grain weight increased with the increase of fertilizer application, which was beneficial to further increase the yield in high fat area. However, After filling speed significantly lagged.